Earnings roundup: Clean Harbors, ProAssurance

Among the earnings stories for Wednesday, May 7, from AP Financial News:

NORWELL, Mass. (AP) _ Waste management services provider Clean Harbors Inc. on Wednesday said its first-quarter profit more than doubled, helped by higher revenue from both its technical and site services unit.

BIRMINGHAM, Ala. (AP) _ ProAssurance Corp.'s profit slipped 1 percent in the first quarter, as the medical malpractice insurer booked losses on its investment portfolio, and continued to suffer from a squeeze in premium rates across the industry, the company said Wednesday.

LAS VEGAS (AP) _ Casino operator Pinnacle Entertainment Inc. said Wednesday its first-quarter profit soared 76 percent, helped by Hurricane Katrina insurance proceeds.

HOUSTON (AP) _ Transocean Inc., the world's largest offshore drilling contractor, said Wednesday its first-quarter earnings more than doubled, mostly boosted by sales from its acquired competitor GlobalSantaFe Corp.

CHARLOTTE, N.C. (AP) _ Hospital operator MedCath Corp. late Tuesday said its fiscal second-quarter profit slipped as revenue declined due to the recapitalization of one hospital and the sale of another.

ATLANTA (AP) _ Cox Radio Inc. said Wednesday its first-quarter profit slipped 5 percent as national and local ad revenue declined, but the results still managed to beat Wall Street's expectations.